IT7949677A0 - VARIABLE MASK DEVICE FOR ILLUMINATOR OR SIMILAR - Google Patents
VARIABLE MASK DEVICE FOR ILLUMINATOR OR SIMILARInfo
- Publication number
- IT7949677A0 IT7949677A0 IT7949677A IT4967779A IT7949677A0 IT 7949677 A0 IT7949677 A0 IT 7949677A0 IT 7949677 A IT7949677 A IT 7949677A IT 4967779 A IT4967779 A IT 4967779A IT 7949677 A0 IT7949677 A0 IT 7949677A0
- Authority
- IT
- Italy
- Prior art keywords
- illuminator
- similar
- mask device
- variable mask
- variable
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B27/00—Photographic printing apparatus
- G03B27/32—Projection printing apparatus, e.g. enlarger, copying camera
- G03B27/52—Details
- G03B27/54—Lamp housings; Illuminating means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
- F21V11/16—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using sheets without apertures, e.g. fixed
- F21V11/18—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using sheets without apertures, e.g. fixed movable, e.g. flaps, slides
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2121/00—Use or application of lighting devices or systems for decorative purposes, not provided for in codes F21W2102/00 – F21W2107/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
- F21W2131/40—Lighting for industrial, commercial, recreational or military use
- F21W2131/406—Lighting for industrial, commercial, recreational or military use for theatres, stages or film studios
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Securing Globes, Refractors, Reflectors Or The Like (AREA)
- Projection Apparatus (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53084368A JPS5926081B2 (en) | 1978-07-10 | 1978-07-10 | Variable mask device for illuminators, etc. |
Publications (2)
Publication Number | Publication Date |
---|---|
IT7949677A0 true IT7949677A0 (en) | 1979-07-06 |
IT1162344B IT1162344B (en) | 1987-03-25 |
Family
ID=13828577
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT49677/79A IT1162344B (en) | 1978-07-10 | 1979-07-06 | VARIABLE MASK DEVICE FOR ILLUMINATOR OR SIMILAR |
Country Status (6)
Country | Link |
---|---|
US (1) | US4468720A (en) |
JP (1) | JPS5926081B2 (en) |
DE (1) | DE2927042A1 (en) |
FR (1) | FR2431655A1 (en) |
GB (1) | GB2036282B (en) |
IT (1) | IT1162344B (en) |
Families Citing this family (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB8413139D0 (en) * | 1984-05-23 | 1984-06-27 | Unisplay Sa | Enhanced matrix displays |
JPS60134201U (en) * | 1984-02-20 | 1985-09-06 | 松下電工株式会社 | cutter spot light |
EP0180665A1 (en) * | 1984-11-06 | 1986-05-14 | Inlines Productions S.A. | Lighting device with framing gate |
US4893225A (en) * | 1986-12-08 | 1990-01-09 | Altman Stage Lighting Co., Inc. | Color changer |
JPH01306549A (en) * | 1988-06-02 | 1989-12-11 | Central Glass Co Ltd | Masking member |
GB2265975B (en) * | 1992-03-31 | 1996-02-21 | Strand Lighting Ltd | Luminaire |
US5345371A (en) * | 1992-11-05 | 1994-09-06 | Cunningham David W | Lighting fixture |
DE4300056C2 (en) * | 1993-01-04 | 1998-07-16 | Weigert Dedo Film Gmbh | Barndoor for one lamp |
US5379083A (en) * | 1994-02-15 | 1995-01-03 | Raychem Corporation | Projector |
US5651602A (en) * | 1994-11-17 | 1997-07-29 | Joseph N. Tawil | Portable light diffuser |
USD387866S (en) * | 1995-11-22 | 1997-12-16 | Maxant | Mask for supporting and displaying mammography film |
US5818624A (en) * | 1995-12-27 | 1998-10-06 | Patterson; John | Mask for viewing reduced-size radiographic film, particularly mammography film |
US5924783A (en) * | 1997-07-24 | 1999-07-20 | Raychem Corporation | System for controlling contrast in projection displays |
US6422720B2 (en) * | 1998-02-20 | 2002-07-23 | Lsi Industries Inc. | Retrofit canopy luminaire and method of installing same |
EP2018587A4 (en) * | 1999-09-22 | 2009-01-28 | Light & Sound Design Ltd | Multilayer control of gobo shape |
US7161562B1 (en) * | 1999-09-22 | 2007-01-09 | Production Resource Group, L.L.C. | Multilayer control of gobo shape |
US9894251B2 (en) | 1999-09-22 | 2018-02-13 | Production Resource Group, L.L.C | Multilayer control of gobo shape |
US6832845B1 (en) * | 2001-06-14 | 2004-12-21 | Thomas E. Kretzschmar | Contour light projector |
US6550939B2 (en) | 2001-09-12 | 2003-04-22 | Vari-Lite, Inc. | Light beam shutter apparatus |
US6942358B2 (en) * | 2002-03-29 | 2005-09-13 | Arista Enterprises, Inc. | Light emitting diode (LED) flashlight |
ITMI20021625A1 (en) * | 2002-07-23 | 2004-01-23 | Coemar Spa | BRIGHT PROJECTOR WITH MEANS TO PERIMETALLY DELIMIT THE BEAM OF LIGHT EMITTED |
US7556402B2 (en) * | 2004-03-29 | 2009-07-07 | Cooper Technologies Company | Direct-indirect luminaire with shutter |
KR100689315B1 (en) * | 2004-08-10 | 2007-03-08 | 엘지.필립스 엘시디 주식회사 | Device for crystallizing silicon thin layer and method for crystallizing using the same |
US7195359B1 (en) | 2005-01-28 | 2007-03-27 | Conti Mario W | Framing projector with adjustable shutter |
US7517088B1 (en) | 2005-11-28 | 2009-04-14 | Thomas E. Kretzschmar | Light projector |
US20070211226A1 (en) * | 2006-03-09 | 2007-09-13 | Ho Heng C | Light leakage preventive structure for front projector |
JP5261087B2 (en) * | 2008-09-08 | 2013-08-14 | 三洋電機株式会社 | Electronic device with open / close door |
AU2009200881A1 (en) * | 2009-03-06 | 2010-09-23 | Selecon New Zealand Limited | Shutter lock |
CN104321587A (en) | 2012-03-18 | 2015-01-28 | 罗布照明有限公司 | Beam framing system for an automated luminaire |
EP3227601B1 (en) * | 2014-10-01 | 2021-12-15 | Robe Lighting s.r.o. | Collimation and homogenization system for an led luminaire |
EP3674605A1 (en) * | 2018-12-25 | 2020-07-01 | Self Electronics Co., Ltd. | Light spot adjustment subassembly for a projection lamp |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB191212852A (en) * | 1912-05-31 | 1913-04-10 | Frederick Cyril Jenkins | Improvements in and relating to Signalling Apparatus. |
US1738945A (en) * | 1928-11-01 | 1929-12-10 | Brenkert Karl | Framing shutter |
US2210554A (en) * | 1939-01-17 | 1940-08-06 | Charles L Beckman | Spotlight |
US2553094A (en) * | 1947-06-21 | 1951-05-15 | Ncr Co | Floor lamp |
GB847542A (en) * | 1957-12-31 | 1960-09-07 | Gen Electric Co Ltd | Improvements in or relating to studio lights |
US2944145A (en) * | 1958-08-07 | 1960-07-05 | Gen Motors Corp | Dome and reading lamp assembly |
US3069536A (en) * | 1959-12-07 | 1962-12-18 | Walter G Dion | Light projector |
US3140053A (en) * | 1961-09-28 | 1964-07-07 | Lowell Ross | Light fixture |
US3551033A (en) * | 1967-07-03 | 1970-12-29 | Mc Donnell Douglas Corp | Quick change filter |
GB1408385A (en) * | 1971-09-15 | 1975-10-01 | Hartridge Ltd Leslie | Engine test equipment |
DE7707291U1 (en) * | 1977-03-09 | 1977-07-28 | Bischl, Johann, 8000 Muenchen | DEVICE FOR BLOCKING A LIGHT SOURCE |
US4104709A (en) * | 1977-04-11 | 1978-08-01 | Applied Fiberoptics, Inc. | Surgeons headlight with continuously variable spot size |
DE2745397A1 (en) * | 1977-10-08 | 1979-04-19 | Leitz Ernst Gmbh | LIGHT CONTROLLER FOR LIGHT GUIDE LUMINAIRES |
-
1978
- 1978-07-10 JP JP53084368A patent/JPS5926081B2/en not_active Expired
-
1979
- 1979-06-18 GB GB7921072A patent/GB2036282B/en not_active Expired
- 1979-07-04 DE DE19792927042 patent/DE2927042A1/en not_active Withdrawn
- 1979-07-06 IT IT49677/79A patent/IT1162344B/en active
- 1979-07-06 FR FR7917585A patent/FR2431655A1/en active Granted
-
1981
- 1981-08-24 US US06/295,620 patent/US4468720A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
GB2036282B (en) | 1982-06-16 |
JPS5926081B2 (en) | 1984-06-23 |
GB2036282A (en) | 1980-06-25 |
FR2431655A1 (en) | 1980-02-15 |
IT1162344B (en) | 1987-03-25 |
JPS5510778A (en) | 1980-01-25 |
DE2927042A1 (en) | 1980-01-24 |
FR2431655B1 (en) | 1984-01-20 |
US4468720A (en) | 1984-08-28 |
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